Re: [RFC PATCH 4/6] serio: serport: add support for buffered write and receive

From: Pavel Machek
Date: Fri Aug 26 2016 - 16:12:17 EST


Hi!

> @@ -133,26 +133,29 @@ static void serport_ldisc_receive(struct tty_struct *tty, const unsigned char *c
> if (!test_bit(SERPORT_ACTIVE, &serport->flags))
> goto out;
>
> - for (i = 0; i < count; i++) {
> - if (fp) {
> - switch (fp[i]) {
> - case TTY_FRAME:
> - ch_flags = SERIO_FRAME;
> - break;
> -
> - case TTY_PARITY:
> - ch_flags = SERIO_PARITY;
> - break;
> -
> - default:
> - ch_flags = 0;
> - break;
> + if (serio_buffered_mode_enabled(serport->serio)) {
> + serio_receive_buf(serport->serio, cp, count);

Elsewhere:
+ /* Use buffer receive if the driver provides a callback */
+ if (drv->receive_buf)
+ set_bit(SERIO_MODE_BUFFERED, &drv->flags);

Could we use if (drv->receive_buf) above directly, and not require the
bitfield?

Thanks,
Pavel
--
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html